Cutting, creasing, and slotting machine



May 15, 1928.

A. J. CARR CUTTING, CREASING, AND SLOTTING MACHINE 'otiginal Filed June 30. 1925' E'Sheets-Sheet 1 avweutoz May 15, 1928. I 1,669,859

A. J. CARR CUTTING, CREASING, AND SLOTTING MACHINE Original Filed June 30, 1925 2 Sheets-Sheet 2 25 3 47 2 70 a 3 f l i a 'M i 4/ 4 .7 a. 37 LFI E:;' 1 22 a7 T4'0 W f 445 46 M E 45 l. I 7 v 4 n n 44 TE 4E 37 43 46 3 .37 e

A TTORNE) Patented May 15, 1928.

UNITED STATES PATENT, QFFICE.

ALOYSIUS JAMES CARE, OF CARTHAGE, INDIANA, ASSTGNOR TO I. X. HOOPER (101M:-

PANY, OF GLEIIARM, MARYLAND,

A oonrolm'rron or MARYLAND.

CUTTING, CREASING, AND snorrine amonrnn.

Application filed June 30, 1925, Serial No. 40,591. Renewed October 12,1927.

This invention relates to a mechanism for transversely slotting and scoring box blanks as they are moved lengthwise along a bed. The mechanism is designed particularly for use asan attachment to presses for printing upon the blanks, although it may be used separately, and it may have associated with it, well known devices for effecting longitudinal scoring of the blanks, although such are not shown in the drawing.

In the accompanying drawing,

,Fig. 1 is a side elevation of the attachment applied to a printing press, the rear parts of the latter being shown;

Fig. 2 is a front elevation of the slotting attachment, looking from left to right in Fig. 1, the pull rollers being omitted;

Fig. 3 is a top plan. view of the same; and,

Fig. 1 is a plan view of a blank showing the slots made by the attachment.

Referring to Fig. 1 of the drawing, a indicates a part of the frame of a printing press having a stationary bed 1. along which box blanks are moved from left to right, between a form roller 2 and an impression cylinder (not shown) on a shaft 3. The driving shaft by which power is applied to the press is indicated at 1, and this shaft carries a pinion 5, meshingwith a gear 6 on the shaft A gear "7 on the latter shaft meshes with a large gear 8, which drives a gear 9 on a shaft 10, the latter being mounted in a frame 7) which has a bed forming a continuation of the bed'of the printing press. The slotting knives are mounted upon the shaft 10, as hereinafter described. The blanks to be slotted, after passing between the form and impression cylinders, are carried to the right in. Fig. 1, by pairs of pull rollers 11--12, 1314, driven from the main shaft 4: through the train of gearing shown and unnecessary to describe. From the pull rollers 131 l-, the blanks pass beneath a creasing roller 15 and then between pullrollcrs 16 and 17, which deliver the blanks to an endless tape 18, by which they are carried away from the machine. The pull rollers 16 and 17 are operatedfrom a gear 19 on the shaft 1.0 which meshes with a gear 20, to which is connected agear 21, meshing with a gear 22 on the shaft 23 of the pull roller 17: The pull roller 16 is operated from the gear 21" through a train of gearing 2 l2526 and a gear 27 on the pull roller shaft 28.

Three wheels or spiders 29, 30, and "31, secured to-the shaft 10, carry the slotting knives. These knives are arranged in hollow bars 0, d, and e, which are mounted upon the spiders parallel withone another and with the shaft 10. As shown in Figs. 2 and 3, threaded adjusting rods 32 and 33 extend through each end of each hollowbar, and upon each pair of rods are mounted bearings 34 which support a rock shaft 35, to which is secured a segmental gear 36, anda knife 37 is secured to thisgear, so that when the shaft is rocked the knife will be oscillated. A rack 38 engages the segmentalgear, and this rack is secured to a rod 39 which slides in an opening in the end of the hollow bar andin a guide e10, within the bar. Upon the outer end of the rod 39 is arranged a roller 41, which extendsinto a groove 42 in the face of an annular cam 7". This cam is stationary and concentric with the axis of theshaft 10. As shown, there are twocams, secured to the opposite sides of the machine, and projecting from the ends of each hollow bar are the rods 39 with attached rollers 41, the latter entering the grooves in the cams. The cams are so formed that when a knife-carrying bar is at the highest point in its revolution, the rods 39-will be drawn outwardly and the knives, which operate in slots 13 in the bars, will lie in horizontal positions with the backs ofthe knives substantially flush with the outer surfaces of the bars. As the bars, in turning from right to left, in Fig. 1., start to ascend, the rollers are moved inwardly bythe inwardly inclined portions 44: of the cams and the rods 39, moving in wardly, will cause the knives to rock to the radial positions shown on the-bar (Z in Figs. 2 and From this position,'the cams turn abruptly outward, as shown at 15, and the knives are thereby rocked to the horizontal position, reaching this position at about the time when the bar carrying the knives is at its uppermost position. i

Creaser blades 46 are arranged in each of the bars for transversely creasing the box blanks in line with the slots made by the knives.

In the operation of the mechanism, the blanks pass from left to right in Fig. 1, between the printing rollers and'thenbeneath the creasing roller 15; The peripheral speed of the outer faces of the-bars carrying the knives is substantially the same as the pcripheral speeds of the printing rollers and pull rollers and the knife carrying bars are spaced about thespiders the proper distances to cause the knives to engage the blanks along the lines where the slots are desired. While the forward partot a box blank is approaching the line "passing vertically through the shaft 10, the knives carried by the hollow bar are closing, and in closing, they cut the transverse cuts 47 in the blank It, Figs. 2 and 4. Immediately afterward, the creaser blade 46 in said bar presses the blank against the creaser roller 15, and the transverse crease 47 is made in the blank. The knives at this time are in horizontal position and lie below the edge of the creaser blade. Similarly, when the knife-carrying bar (Z rises to its highest point, the knives on said bar will cut the slots 48 and the creaser blades will make the crease 48, and when the blades carried by the bare reach their highest point, they will cut the slots 49 and the creaser blade will form the crease 49. The

' blank will then pass from the machine and succeeding blanks will be operated upon in the same way.

The supporting bars a, (Z, and e for the knives and creaser blades will, of course, be mounted adjustably on the spiders, in order that the bars may be spaced apart to suit the desired spacing of the slots and creases in the blanks.

What I claim is:

1. The combination with a bed and means for moving box blanks along the bed, of a carrier rotatable about an axis transverse to the bed, knife-blades on the carrier movable in a plane containing its axis, means for rotating the carrier to carry the knives into and out of position to cut the blanks and at substantially the same speed as the blanks, and means for closing the knives in the cutting position and for opening the knives after leaving said position.

2. The combination with a bed and means for moving box blanks along the bed, of a. carrier rotatable about an axis transverse to the bed, knife-blades pivotally mounted at the sides of the carrier out of the path of movement of the blanks and adapted to rock in a plane containing the axis of the carrier, means for rotating the carrier to carry the knives into and out of position to cut the blanks, and means for closing the knives in the cutting position and for opening the knives after leaving said position.

3. The combination with a bedand means for moving box blanks along the bed, of a carrier rotatable about an axis transverse to the bed, supporting bars on said carrier parallel with its axis, means for rotating the carrier to move said bars into engagement with the blanks and at the same speed and in the same direction as the blanks, knife blades pivotally mounted at the end portions of the bars, means for rocking said blades to closed positions to cut the blanks when the supporting bars engage the latter and for moving the blades to open position after said bars move out ofengagement with the blanks.

at. The combination with a bed and means for moving box blanks along the bed, of a carrier rotatable about an axis transverse to the bed, supporting bars on said carrier parallel with its axis, means for rotating the carrier to move said bars into engagement with the blanks and at the same speed and in the same direction as the blanks, means for transversely slotting the blanks when the supporting bars are in engagement therewith, creaser bars extending longitudinally of the supporting bars, and a roller cooperating with the creaser bars to transversely crease the blanks after they have been slotted.

5. The combination with a bed and means for moving box blanks along the bed, of 'a carrier rotatable about an axis transverse to the bed, supporting bars on said carrier parallel with its axis, means for rotating the carrier to move said bars into engagement with the blanks and at the same speed and in the same direction as the blanks, knife blades pivotally mounted at the end portions of the bars, means for rocking said blades to closed positipns to out the blanks when the supporting bars engage the latter and for moving the bladesto open position after said bars move out of engagement with the blanks, creaser bars extending longitudinally of the supporting bars between the knife blades, and a roller adapted to press the blanks against the creaser bars after the blanks have been slotted.

6. The combination with a bed and means for moving box blanks along the bed, of a shaft mounted transversely of the bed and below the same, supporting bars arranged parallel with the shaft and rotatable therewith, knife blades pivotally mounted on said bars, rods for rocking said blades, and stationary cams for moving said rods to rock the blades to open and closed positions.

7. The combination with a bed and means for moving box blanks along the bed, of a shaft mounted transversely of the bed and below the same, supporting bars arranged parallel with the shaft and rotatable therewith, a creasing roller arranged above the bed at one side of the axis of said shaft,

knife blades pivotally mounted at the end portions of the supporting bars, a creaser bar between the blades on each bar, stationary annular cams, and means engaging said cams for rocking the blades.

In testimony whereof I hereunto affix my signature.

ALOYSIUS JAMES CARR. 

